Images 26.05.2021 · Istanbul University Observatory Solar Observations

Solar Images Wednesday, 26 May 2021

‹ 25.05.2021 2021 27.05.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3231 px)

Time: 08:15 UT
Observer: Oğuzhan ÇAKIR
g: 2
f: 23
R: 43
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DKI – 16

Group 2 · DSC – 7

RDS data file (.gzd)

[Gözlem]
Tarih=26.05.2021
Saat=08:15
Gözlemci=Oğuzhan ÇAKIR
KontrolEden=Talar YONTAN
Durumaçısı=-17.39
Enlemaçısı=-1.35
Boylamaçısı=163.29
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.4
Sırano=19178
AyRasatNo=7
RasatÖnceki=25.05.2021
RasatSonraki=27.05.2021

[Leke Grupları]
Grupsayısı=2:2:0
LekeSayısı=23:23:0
RölatifSayı=43:43:0
01=DKI 16 +22.411 +51.240 214.314 +0.000 0000 0 +25.330 +54.170 +19.493 +48.310 +22.411 +53.817 +22.411 +48.231
02=DSC 07 +18.714 +29.753 193.430 +0.000 0000 0 +20.160 +32.970 +17.269 +26.536 +18.714 +32.770 +18.714 +26.736

20210526.gzd

Chromosphere (H-α) FITS frames

The images are made automatically with a fixed, gentle rule: uneven illumination and most of the limb darkening are removed, and the brightness is shown on a linear scale (no sharpening); prominences get their own scale outside the limb. Frames are ordered by sharpness (seeing); frames without the Sun (darks, bias) come last. Method →

2021/20210526_oc · OC · 11 frames · 235.7 MB · 08:15:37–08:38:06 UT

08:17:59 UT · 70 ms